Timothy J. Callahan is an associate professor of

geology Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Ear ...

and environmental geosciences at the

College of Charleston The College of Charleston (CofC or Charleston) is a public university in Charleston, South Carolina. Founded in 1770 and chartered in 1785, it is the oldest university in South Carolina, the 13th oldest institution of higher learning in the Unit ...

South Carolina )''Animis opibusque parati'' ( for, , Latin, Prepared in mind and resources, links=no) , anthem = " Carolina";" South Carolina On My Mind" , Former = Province of South Carolina , seat = Columbia , LargestCity = Charleston , LargestMetro = ...

. He is director of the college's Master of Environmental Studies program and has interests in

hydrogeology Hydrogeology (''hydro-'' meaning water, and ''-geology'' meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquif ...

wetlands A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

and

water resources Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water. 97% of the water on the Earth is salt water and only three percent is fresh water; slight ...

."MES Faculty Members"
, College of Charleston. Retrieved 2010-01-28.

Education

Callahan holds a Ph.D. in earth and environmental science (2001) and an M.S. in

geochemistry Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the e ...

from the

New Mexico Institute of Mining and Technology The New Mexico Institute of Mining and Technology (New Mexico Tech and formerly New Mexico School of Mines) is a public university in Socorro, New Mexico. It offers over 30 bachelor of science degrees in technology, the sciences, engineering, man ...

(1995), as well as a B.A. in

from the

University of St. Thomas St. Thomas University or University of St. Thomas may refer to: *Saint Thomas Aquinas University, Colombia *Saint Thomas Aquinas University of the North, Tucumán province, Argentina *St. Thomas University (Canada), Fredericton, New Brunswick *St. ...

, St. Paul, Minnesota (1991).

Environmental science

Callahan is a member of the

American Geophysical Union The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's act ...

, the Carolina Geological Society, the

Geological Society of America The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences. History The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchco ...

and the

Society of Wetland Scientists The Society of Wetland Scientists (SWS) is an international, professional non-profit organization devoted to promoting understanding, conservation, protection, restoration, science-based management, and sustainability of wetlands. Society membersh ...

.Dr. T. J. Callahan brief biography
Retrieved 2010-01-29. He co-authored three papers on hydrology for the 2008 South Carolina Water Resources Conference and has co-authored several other peer-reviewed articles published in the ''Journal of the American Water Resource Association'', the ''Journal of Geoscience Education'', the ''Journal of Contaminant Hydrology'' and elsewhere.

References

{{DEFAULTSORT:Callahan, Tim College of Charleston faculty American hydrologists American geophysicists University of St. Thomas (Minnesota) alumni New Mexico Institute of Mining and Technology alumni Living people Year of birth missing (living people)